People get tired of violence. Anger, as a form of aggression, is the most difficult emotion, strength and experience. The lack of ability to cope with aggression leads to the breakdown of the individual, environment and state.
The ultimate weakness of violence is that it is a descending spiral, begetting the very thing it seeks to destroy. Instead of diminishing evil, it multiplies it. Through violence you may murder the liar, but you cannot murder the lie, nor establish the truth. Through violence you may murder the hater, but you do not murder hate. In fact, violence merely increases hate. So it goes. ... Returning hate for hate multiplies hate, adding deeper darkness to a night already devoid of stars. Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that.
Martin Luther King
«Strength to Love» (1963)